Historians describe the time immediately after the Han Dynasty collapsed as , a.
“the Civil War”
c.
“the Years of Chaos”
b.
“the Period of the Warring States”
d.
“the Period of Disunion”

Why are committees necessary in congress?

The primary purpose of a certificate of confidentiality is to: allow law enforcement to investigate abuse cases.protect researchers from disclosing conflicts of interest.prevent subjects from knowing the purpose of a study.protect identifiable research information from compelled disclosure.

What made it increasingly difficult for president roosevelt to stay neutral during world war ii?